Brocade FastIron Ethernet Switch Layer 3 Routing Configuration Guide - Manual (Page 323)

The following example deletes the NSSA area 100.
device(config-ospf6-router)#no area 100
Syntax: [no] area area-id nssa [[stub-metric] [default-information-originate [metric metric-value |
metric-type type-value]] [no-summary] [no-redistribution] [translator-always] [translator-interval
stability-interval]]
The area-id parameter specifies the area number, which can be a number or in IP address format. If
you specify a number, the number can be from 0 to 2,147,483,647.
The nssa stub-metric parameter configures an area as a not-so-stubby-area (NSSA). The stub-metric
will be the metric used for generating default LSA in a NSSA. The range of the value is 1 to 1048575.
The default value is 10.
The default-information-originate parameter generates a default route into an NSSA. If no-summary
option is enabled then a type-3 default LSA will be generated into NSSA else a type-7 LSA will be
generated into NSSA. By default the default-information-origiante parameter is not set.
The metric metric-value parameter specifies the cost of the default LSA originated into the NSSA area.
The range is 1 to 1048575. There is no default
The metric-type type-value parameter specifies the type of the default external LSA originated into the
NSSA area. It can be either type-1 or type-2. The default is type-1.
The no-summary parameter prevents an NSSA ABR from generating a type-3 summary into an NSSA.
By default the summary LSA is originated into NSSA.
The no-redistribution parameter prevents an NSSA ABR from generating external (type-7) LSA into an
NSSA area. This is used in the case where an ASBR should generate type-5 LSA into normal areas
and should not generate type-7 LSA into NSSA area. By default, redistribution is enabled in a NSSA.
The translator-always parameter configures the translator-role. When configured on an ABR, this
causes the router to unconditionally assume the role of an NSSA translator. By default, translator-
always is not set, the translator role by default is candidate.
The translator-interval stability-interval parameter configures the time interval for which an elected
NSSA translator continues to perform its duties even after its NSSA translator role has been disposed
by another router. By default the stability-interval is 40 seconds and its range will be 10 to 60 seconds.
Configuring an address range for the NSSA
If you want the ABR that connects the NSSA to other areas to summarize the routes in the NSSA
before translating them into Type-5 LSAs and flooding them into the other areas, configure an address
range. The ABR creates an aggregate value based on the address range. The aggregate value
becomes the address that the ABR advertises instead of advertising the individual addresses
represented by the aggregate. You can configure up to 32 ranges in an OSPF area.
To configure an address range in NSSA 10.1.1.1, enter the following commands. This example
assumes that you have already configured NSSA 10.1.1.1.
device(config)# router ospf
device(config-ospf6-router)# area 10.1.1.1 range 2001:DB8::/32
device(config-ospf6-router)# write memory
Syntax: [no] area {num | ip-addr} {range ipv6-addr/ipv6-subnet-mask} [advertise | not-advertise]
The num and ip-addr parameters specify the area number, which can be in IP address format. If you
specify a number, the number can be from 0 - 2,147,483,647.
The range ipv6-addr parameter specifies the IP address portion of the range. The software compares
the address with the significant bits in the mask. All network addresses that match this comparison are
summarized in a single route advertised by the router.
OSPFv3
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